Branagh is the new teacher of the Dark Arts, Gilderoy Lockhart, an egotistical author loved by the people of the wizarding world. His actions complicate the main goals of Harry, Ron, and Hermione, which are to uncover the secrets behind dangerous events as their school years progress, in the second film based on the book by the same by J.K. Rowling, directed by Chris Columbus. Co-starring Dan Radcliffe, Emma Watson, Rupert Grint, Alan Rickman, and Maggie Smith.
Chris [Columbus] wisely kept me away from [Daniel, Emma, and Rupert] before our first scene together. So in that sense, the first person they met was Gilderoy Lockhart.